YN

Yoko Nanbu

AK Asahi Denka Kogyo K.K.: 1 patents #47 of 162Top 30%
Overall (All Time): #3,567,742 of 4,157,543Top 90%
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Patent #TitleCo-InventorsDate
6500887 Polymeric material composition Etsuo Tobita, Shinichi Ishikawa, Takashi Ayabe 2002-12-31